Privacy Policy

Last updated: May 5, 2026

This Privacy Policy explains how Techsolid Automation Limited ("we", "us", "our") collects, uses, and protects information when you use rungs.dev and studio.rungs.dev (the "Service").

What We Collect​

Analytics Data​

We use PostHog (EU instance) to understand how the Service is used. PostHog may collect:

• Usage events — actions such as creating, importing, exporting, and sharing AOIs; starting simulations and tests; editing sessions
• Session recordings — anonymized replays of how you interact with the interface
• Device and browser information — browser type, operating system, screen size, and technical identifiers
• Page views and navigation — which pages you visit and how you move through the Service
• Error and performance data — exceptions and timing metrics to help us improve reliability

Analytics data is processed in the European Union via PostHog's EU infrastructure (eu.i.posthog.com). While we do not require account registration, analytics and service providers may still process online identifiers and similar technical data.

Cookies​

PostHog sets analytics cookies to distinguish unique visitors and sessions. We do not use advertising cookies. We currently do not provide a cookie consent banner. You can block or clear analytics cookies using browser controls or privacy tools.

Search (Docs Site)​

The documentation site at rungs.dev uses Algolia for search. Algolia processes your search queries to return results. Do not include personal or sensitive information in search queries.

What We Do Not Collect​

• No accounts required — the Service does not require registration, login, or email addresses.
• No project data on our servers — your AOI projects are stored locally in your browser's localStorage. We never upload, access, or back up your project data.
• No payment information — the Service is currently free. If paid plans are introduced, payment processing will be handled by a third-party provider and this policy will be updated.

Relay AI Assistant​

Relay is the AI tutor available in Studio's right sidebar (the Relay tab). When you send a message to Relay, the following are sent from your browser to our studio-assist server and forwarded to a third-party large language model provider:

• The text of your message and prior turns in the current chat thread
• Your current Studio context: the tags and ladder/structured text code in the AOI you have open at that turn, plus which tab (Tags, Logic, Tests, Trend) is active and any visible compiler diagnostics
• Optional thumbs up / thumbs down feedback you give on a reply

The model provider processes your prompt to generate a reply and returns it through our server. We do not include AOIs you have not opened, AOIs from other Studio sessions, your other localStorage drafts, or your test results unless they are part of the active context above.

We capture each Relay turn in PostHog LLM Analytics (EU instance). For every turn we store: the prompt, the model reply, the model name, token counts, latency, an anonymous session identifier, and any feedback you provide. We use these traces to evaluate Relay quality, debug bugs, and improve the system prompt and underlying documentation. Individual turns may be read by our team when investigating issues.

Do not paste secrets, credentials, customer data, or proprietary code into Relay.

Relay is currently free during an early-access period. Paid AI features may be introduced later; if so, payment information will be handled by a third-party processor and this policy will be updated.

AOI Sharing​

When you use the optional Share feature, the AOI data you choose to share is uploaded to our database (hosted on Supabase) and made publicly accessible via a link. Shared AOIs are:

• Public — anyone with the link can view and fork the shared AOI
• Anonymous — shares are not linked to any user identity
• Size-limited — maximum 100 KB per shared AOI
• Rate-limited — to prevent abuse

You can share AOIs at your discretion. Do not share AOIs containing proprietary or confidential logic.

Shared AOIs may be used to operate, secure, and improve the Service, including developing, evaluating, and training machine learning and AI features. This applies only to AOIs you choose to share, not AOIs stored locally in your browser.

Data Storage and Retention​

Third-Party Services​

Your Rights​

You can:

• Clear local data at any time by clearing your browser's localStorage for studio.rungs.dev
• Opt out of analytics by using a browser extension that blocks PostHog (e.g., an ad blocker or privacy extension)
• Request data deletion by contacting us — we will remove or anonymize analytics data associated with your sessions where technically feasible

If you are in the EU/EEA, you have rights under GDPR including the right to access, rectify, or erase personal data. Contact us to exercise these rights.

Children's Privacy​

The Service is not directed at children under 16. We do not knowingly collect information from children.

Changes to This Policy​

We may update this Privacy Policy from time to time. Changes will be posted on this page with an updated "Last updated" date.

Contact​

For privacy questions or data requests, contact us at:

Techsolid Automation Limited Email: privacy@techsolid.io

Current AI Model Provider​

As of the "Last updated" date above, the third-party large language model provider used by Relay is Google (Gemini) — see policies.google.com/privacy. We may change providers at our discretion; the current provider will be reflected here.